Added back bitmap handling classes & methods
This commit is contained in:
Sylvain Berfini
parent
53d83a49f8
commit
d2f3ed7e43
2 changed files with 204 additions and 5 deletions
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@ -1,5 +1,5 @@
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/*
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GroupChatFragment.java
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ChatEventsAdapter.java
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Copyright (C) 2017 Belledonne Communications, Grenoble, France
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This program is free software; you can redistribute it and/or
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@ -20,12 +20,27 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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package org.linphone.chat;
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import android.content.Context;
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import android.content.Intent;
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import android.content.res.Resources;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.graphics.Matrix;
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import android.graphics.drawable.BitmapDrawable;
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import android.graphics.drawable.Drawable;
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import android.media.ExifInterface;
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import android.media.ThumbnailUtils;
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import android.net.Uri;
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import android.os.AsyncTask;
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import android.provider.MediaStore;
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import android.support.v4.content.FileProvider;
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import android.text.Spanned;
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import android.text.method.LinkMovementMethod;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.webkit.MimeTypeMap;
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import android.widget.BaseAdapter;
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import android.widget.ImageView;
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import android.widget.RelativeLayout;
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import org.linphone.LinphoneManager;
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@ -39,21 +54,31 @@ import org.linphone.core.Address;
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import org.linphone.core.ChatMessage;
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import org.linphone.core.Core;
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import org.linphone.core.EventLog;
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import org.linphone.mediastream.Log;
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.lang.ref.WeakReference;
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import java.text.SimpleDateFormat;
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import java.util.Arrays;
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import java.util.Calendar;
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import java.util.List;
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import java.util.regex.Pattern;
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import static android.content.Intent.FLAG_GRANT_READ_URI_PERMISSION;
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public class ChatEventsAdapter extends BaseAdapter {
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private Context mContext;
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GroupChatFragment mFragment;
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private List<EventLog> mHistory;
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private List<LinphoneContact> mParticipants;
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private LayoutInflater mLayoutInflater;
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private Bitmap mDefaultBitmap;
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public ChatEventsAdapter(Context context, LayoutInflater inflater, EventLog[] history, List<LinphoneContact> participants) {
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public ChatEventsAdapter(Context context, GroupChatFragment fragment, LayoutInflater inflater, EventLog[] history, List<LinphoneContact> participants) {
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mContext = context;
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mFragment = fragment;
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mLayoutInflater = inflater;
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mHistory = Arrays.asList(history);
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mParticipants = participants;
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@ -288,4 +313,176 @@ public class ChatEventsAdapter extends BaseAdapter {
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return Compatibility.fromHtml(text);
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}
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public void loadBitmap(String path, ImageView imageView) {
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if (cancelPotentialWork(path, imageView)) {
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if (LinphoneUtils.isExtensionImage(path)) {
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mDefaultBitmap = BitmapFactory.decodeResource(mContext.getResources(), R.drawable.chat_attachment_over);
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} else {
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mDefaultBitmap = BitmapFactory.decodeResource(mContext.getResources(), R.drawable.chat_attachment);
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}
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BitmapWorkerTask task = new BitmapWorkerTask(imageView);
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final AsyncBitmap asyncBitmap = new AsyncBitmap(mContext.getResources(), mDefaultBitmap, task);
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imageView.setImageDrawable(asyncBitmap);
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task.execute(path);
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}
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}
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private class BitmapWorkerTask extends AsyncTask<String, Void, Bitmap> {
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private static final int SIZE_SMALL = 500;
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private final WeakReference<ImageView> imageViewReference;
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public String path;
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public BitmapWorkerTask(ImageView imageView) {
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path = null;
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// Use a WeakReference to ensure the ImageView can be garbage collected
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imageViewReference = new WeakReference<ImageView>(imageView);
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}
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// Decode image in background.
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@Override
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protected Bitmap doInBackground(String... params) {
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path = params[0];
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Bitmap bm = null;
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Bitmap thumbnail = null;
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if(LinphoneUtils.isExtensionImage(path)) {
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if (path.startsWith("content")) {
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try {
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bm = MediaStore.Images.Media.getBitmap(mContext.getContentResolver(), Uri.parse(path));
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} catch (FileNotFoundException e) {
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Log.e(e);
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} catch (IOException e) {
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Log.e(e);
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}
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} else {
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bm = BitmapFactory.decodeFile(path);
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}
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// Rotate the bitmap if possible/needed, using EXIF data
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try {
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Bitmap bm_tmp;
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ExifInterface exif = new ExifInterface(path);
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int pictureOrientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, 0);
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Matrix matrix = new Matrix();
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if (pictureOrientation == 6) {
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matrix.postRotate(90);
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} else if (pictureOrientation == 3) {
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matrix.postRotate(180);
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} else if (pictureOrientation == 8) {
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matrix.postRotate(270);
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}
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bm_tmp = Bitmap.createBitmap(bm, 0, 0, bm.getWidth(), bm.getHeight(), matrix, true);
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if (bm_tmp != bm) {
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bm.recycle();
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bm = bm_tmp;
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} else {
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bm_tmp = null;
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}
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} catch (Exception e) {
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Log.e(e);
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}
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if (bm != null) {
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thumbnail = ThumbnailUtils.extractThumbnail(bm, SIZE_SMALL, SIZE_SMALL);
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bm.recycle();
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}
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return thumbnail;
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}else
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return mDefaultBitmap;
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}
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// Once complete, see if ImageView is still around and set bitmap.
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@Override
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protected void onPostExecute(Bitmap bitmap) {
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if (isCancelled()) {
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bitmap = null;
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}
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if (imageViewReference != null && bitmap != null) {
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final ImageView imageView = imageViewReference.get();
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final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
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if (this == bitmapWorkerTask && imageView != null) {
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imageView.setImageBitmap(bitmap);
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//Force scroll too bottom with setSelection() after image loaded and last messages
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mFragment.scrollToBottom();
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imageView.setTag(path);
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imageView.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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Intent intent = new Intent(Intent.ACTION_VIEW);
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File file = null;
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Uri contentUri = null;
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String imageUri = (String)v.getTag();
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if (imageUri.startsWith("file://")) {
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imageUri = imageUri.substring("file://".length());
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file = new File(imageUri);
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contentUri = FileProvider.getUriForFile(mContext, "org.linphone.provider", file);
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} else if (imageUri.startsWith("content://")) {
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contentUri = Uri.parse(imageUri);
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} else {
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file = new File(imageUri);
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contentUri = FileProvider.getUriForFile(mContext, "org.linphone.provider", file);
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}
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String type = null;
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String extension = MimeTypeMap.getFileExtensionFromUrl(contentUri.toString());
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if (extension != null) {
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type = MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension);
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}
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if(type != null) {
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intent.setDataAndType(contentUri, type);
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}else {
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intent.setDataAndType(contentUri, "*/*");
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}
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intent.addFlags(FLAG_GRANT_READ_URI_PERMISSION);
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mContext.startActivity(intent);
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}
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});
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}
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}
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}
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}
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class AsyncBitmap extends BitmapDrawable {
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private final WeakReference<BitmapWorkerTask> bitmapWorkerTaskReference;
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public AsyncBitmap(Resources res, Bitmap bitmap, BitmapWorkerTask bitmapWorkerTask) {
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super(res, bitmap);
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bitmapWorkerTaskReference = new WeakReference<BitmapWorkerTask>(bitmapWorkerTask);
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}
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public BitmapWorkerTask getBitmapWorkerTask() {
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return bitmapWorkerTaskReference.get();
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}
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}
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private boolean cancelPotentialWork(String path, ImageView imageView) {
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final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
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if (bitmapWorkerTask != null) {
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final String bitmapData = bitmapWorkerTask.path;
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// If bitmapData is not yet set or it differs from the new data
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if (bitmapData == null || bitmapData != path) {
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// Cancel previous task
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bitmapWorkerTask.cancel(true);
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} else {
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// The same work is already in progress
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return false;
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}
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}
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// No task associated with the ImageView, or an existing task was cancelled
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return true;
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}
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private BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) {
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if (imageView != null) {
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final Drawable drawable = imageView.getDrawable();
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if (drawable instanceof AsyncBitmap) {
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final AsyncBitmap asyncDrawable = (AsyncBitmap) drawable;
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return asyncDrawable.getBitmapWorkerTask();
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}
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}
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return null;
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}
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}
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@ -456,7 +456,7 @@ public class GroupChatFragment extends Fragment implements ChatRoomListener, Con
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private void displayChatRoomHistory() {
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if (mChatRoom == null) return;
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mMessagesAdapter = new ChatEventsAdapter(getActivity(), mInflater, mChatRoom.getHistoryEvents(0), mParticipants);
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mMessagesAdapter = new ChatEventsAdapter(getActivity(), this, mInflater, mChatRoom.getHistoryEvents(0), mParticipants);
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mChatEventsList.setAdapter(mMessagesAdapter);
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}
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@ -574,8 +574,10 @@ public class GroupChatFragment extends Fragment implements ChatRoomListener, Con
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mMessageTextToSend.setText("");
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}
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private void scrollToBottom() {
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mChatEventsList.setSelection(mMessagesAdapter.getCount() - 1);
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public void scrollToBottom() {
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if (((mChatEventsList.getLastVisiblePosition() >= (mMessagesAdapter.getCount() - 1)) && (mChatEventsList.getFirstVisiblePosition() <= (mMessagesAdapter.getCount() - 1)))) {
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mChatEventsList.setSelection(mMessagesAdapter.getCount() - 1);
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}
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}
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@Override
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